Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2658e5c0d058b4…

MALICIOUS

PDF

48.4 KB Created: 2020-08-30 12:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af8ee9586ef51fff4dcbf9475f50a40a SHA-1: 933786f1979988a7ca1d18d98463dc908828a980 SHA-256: 7b2658e5c0d058b446e6aa3d0bd5b56ae80f0cbabcd9038fb8ac428dbda09592
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Canon mg2522 printer driver' and a URL that appears to be a lure for a download. The presence of a link farm heuristic further suggests an attempt to distribute malicious content or SEO spam. No scripts were extracted from this sample.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/wix?keyword=canon+mg2522+printer+driver
    • https://static.usrfiles.com/ugd/ad2ade_0f8f7b548e1c4209ad3457f35a20456d.pdf
    • https://static.usrfiles.com/ugd/b58d21_3b918f7e52014fcda113c13e66a99db9.pdf
    • https://static.usrfiles.com/ugd/b8c837_3654629aa2064e9a974cda5dc80845c2.pdf
    • https://static.usrfiles.com/ugd/6846fe_bc9a229998c84b46b8aeb94fca2a9bc8.pdf
    • https://static.usrfiles.com/ugd/b8c837_de08946a9d27462793c77bec0e9c467d.pdf
    • https://cdn.shopify.com/s/files/1/0440/4746/6661/files/pofuka.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/farapun.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/28262933919.pdf
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/qualified_audit_report_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/merriam_webster_unabridged_dictionary_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/9975/8497/files/98613427267.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa7e630b75144777b9c696b8f76a9ba5.pdf
    • https://static.usrfiles.com/ugd/b8c837_13a0358859d044d782ac0944d6d449db.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6071401020040e89cf7e0f04e877af2.pdf
    • https://static.usrfiles.com/ugd/01bc73_46fce88b1666469aae1e4db373beb0f6.pdf
    • https://static.usrfiles.com/ugd/b8c837_eeb7b8ec05764115b8b8a780d8230f3b.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006936.bin
80ca0fa1fb6b3f256ad6269f02bd39349b842f962612cb6d6df2efc796a69693
pdf-font-stream PDF embedded font (sfnt) at offset 0x6936 5196 bytes
font_01_sfnt_off00007ad1.bin
1c8def8b971eef66f9a3a7c2a46643969d2daa5ed6ef95576894b124d397b05d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD1 14160 bytes
font_02_sfnt_off0000a6a7.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A7 4324 bytes